Home / 42,647.68-58,878.66-28,326.88

Finding the Fourth Proportional to 42,647.68, 58,878.66 and 28,326.88

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Solution

The fourth proportional to 42,647.68, 58,878.66 and 28,326.88 is: 39,107.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,647.68 : 58,878.66 = 28,326.88 : x
  2. Step 2: Convert to fraction form
    42,647.68/58,878.66 = 28,326.88/x
  3. Step 3: Cross multiply
    42,647.68x = 58,878.66 × 28,326.88
  4. Step 4: Simplify right side
    42,647.68x = 1,667,848,736.38
  5. Step 5: Solve for x
    x = 1,667,848,736.38/42,647.68
  6. Step 6: Final answer
    x = 39,107.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.